Buggy code:
public class MarkupCache implements IMarkupCache { private static final Logger log = LoggerFactory . getLogger ( MarkupCache . class ) ; private final MarkupCache . ICache < CharSequence , Markup > markupCache ; private final MarkupCache . ICache < CharSequence , CharSequence > markupKeyCache ; private IMarkupCacheKeyProvider markupCacheKeyProvider ; private IMarkupResourceStreamProvider markupResourceStreamProvider ; private IMarkupLoader markupLoader ; private final Application application ; public MarkupCache ( Application application ) { } public final void clear ( ) { } public void shutdown ( ) { } public final Markup removeMarkup ( final String cacheKey ) { } public final MarkupStream getMarkupStream ( final MarkupContainer container , final boolean enforceReload , final boolean throwException ) { if ( container == null ) { throw new IllegalArgumentException ( "Parameter<seq2seq4repair_space>'container'<seq2seq4repair_space>must<seq2seq4repair_space>not<seq2seq4repair_space>be<seq2seq4repair_space>'null'." ) ; } final Markup markup = getMarkup ( container , container . getClass ( ) , enforceReload ) ; if ( markup != ( Markup . NO_MARKUP ) ) { return new MarkupStream ( markup ) ; } if ( throwException == true ) { <START_BUG> throw new MarkupNotFoundException ( ( ( ( ( ( ( "Markup<seq2seq4repair_space>of<seq2seq4repair_space>type<seq2seq4repair_space>'" + ( container . getMarkupType ( ) ) ) + "'<seq2seq4repair_space>for<seq2seq4repair_space>component<seq2seq4repair_space>'" ) + ( getClass ( ) . getName ( ) ) ) + "'<seq2seq4repair_space>not<seq2seq4repair_space>found." ) + "<seq2seq4repair_space>Enable<seq2seq4repair_space>debug<seq2seq4repair_space>messages<seq2seq4repair_space>for<seq2seq4repair_space>org.apache.wicket.util.resource<seq2seq4repair_space>to<seq2seq4repair_space>get<seq2seq4repair_space>a<seq2seq4repair_space>list<seq2seq4repair_space>of<seq2seq4repair_space>all<seq2seq4repair_space>filenames<seq2seq4repair_space>tried.:<seq2seq4repair_space>" ) + ( container . toString ( ) ) ) ) ; <END_BUG> } return null ; } public final boolean hasAssociatedMarkup ( final MarkupContainer container ) { } public final int size ( ) { } protected final MarkupCache . ICache < CharSequence , Markup > getMarkupCache ( ) { } public final Markup getMarkup ( final MarkupContainer container , final Class < ? > clazz , final boolean enforceReload ) { } protected Markup onMarkupNotFound ( final String cacheKey , final MarkupContainer container ) { } @ Deprecated protected Markup putIntoCache ( final String locationString , Markup markup ) { } protected Markup putIntoCache ( final String locationString , MarkupContainer container , Markup markup ) { } protected Markup getMarkupFromCache ( final CharSequence cacheKey , final MarkupContainer container ) { } private final Markup loadMarkup ( final MarkupContainer container , final MarkupResourceStream markupResourceStream , final boolean enforceReload ) { } private final Markup loadMarkupAndWatchForChanges ( final MarkupContainer container , final MarkupResourceStream markupResourceStream , final boolean enforceReload ) { } public IMarkupCacheKeyProvider getMarkupCacheKeyProvider ( final MarkupContainer container ) { } protected IMarkupResourceStreamProvider getMarkupResourceStreamProvider ( final MarkupContainer container ) { } protected IMarkupLoader getMarkupLoader ( ) { } protected < K , V > MarkupCache . ICache < K , V > newCacheImplementation ( ) { } public interface ICache < K , V > { void clear ( ) { } boolean remove ( K key ) { } V get ( K key ) { } Collection < K > getKeys ( ) { } boolean containsKey ( K key ) { } int size ( ) { } void put ( K key , V value ) { } void shutdown ( ) { } } public class DefaultCacheImplementation < K , V > implements MarkupCache . ICache < K , V > { private static final long serialVersionUID = 1L ; private final ConcurrentHashMap < K , V > cache = new ConcurrentHashMap < K , V > ( ) ; public DefaultCacheImplementation ( ) { } public void clear ( ) { } public boolean containsKey ( Object key ) { } public V get ( Object key ) { } public Collection < K > getKeys ( ) { } public void put ( K key , V value ) { } public boolean remove ( K key ) { } public int size ( ) { } public void shutdown ( ) { } } }

Fix:
throw new MarkupNotFoundException ( ( ( ( ( ( ( "Markup<seq2seq4repair_space>of<seq2seq4repair_space>type<seq2seq4repair_space>'" + ( container . getMarkupType ( ) ) ) + "'<seq2seq4repair_space>for<seq2seq4repair_space>component<seq2seq4repair_space>'" ) + ( container . getClass ( ) . getName ( ) ) ) + "'<seq2seq4repair_space>not<seq2seq4repair_space>found." ) + "<seq2seq4repair_space>Enable<seq2seq4repair_space>debug<seq2seq4repair_space>messages<seq2seq4repair_space>for<seq2seq4repair_space>org.apache.wicket.util.resource<seq2seq4repair_space>to<seq2seq4repair_space>get<seq2seq4repair_space>a<seq2seq4repair_space>list<seq2seq4repair_space>of<seq2seq4repair_space>all<seq2seq4repair_space>filenames<seq2seq4repair_space>tried.:<seq2seq4repair_space>" ) + ( container . toString ( ) ) ) ) ;